它原定目标是接近这颗小行星，发射一抛射物（探测器）进入小行星表面，从而捕获扬起的尘埃。
The intention was to get close, fire a projectile into the surface and grab some of the ensuing dust.
每一个行星都被探测过，而且除了水性以外所有存在固体表面的行星都被登陆过。
Every planet has now been visited, and every planet with a solid surface bar Mercury has been landed on.
事实上，仅仅是安全地在火星表面着陆就已经算是成功了，因为这颗红色的行星经常吞噬掉太空探测器。
Indeed, just landing safely on Mars has to be considered a success, since the red planet has a way of devouring space missions.
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